Installation of Fireproof Cable Tray Connecting Plates

Fireproof cable tray support plates should be installed using fire-rated materials, proper mounting elements, and in accordance with firestopping standards to ensure safety and compliance. Step 1: Plan the LayoutBefore installation, plan the cable tray route carefully. Align the trays with the building structure, avoiding unnecessary bends or overlaps with other pipelines.

Ensure power and signal cables are segregated to minimize interference. Select tray width and thickness based on the number and weight of cables to prevent deformation under full load. Step 2: Select Fire-Resistant MaterialsChoose appropriate fireproof materials for the support plates, such as fire-rated boards, firestop packs, firestop mastic, or fire-resistant mineral wool.

Ensure that all fastenings and mounting accessories are also fire-rated to maintain system integrity during a fire. Step 3: Install Support PlatesPosition the Plates: Place the fireproof support plates at slab penetrations or other critical points where the cable tray passes through walls, floors, or ceilings. Ensure the plates are level and square.

Secure the Plates: Use mounting elements such as wall brackets, suspended supports, or center suspensions to attach the plates to the structure. Fastenings must be tight and reliable, following manufacturer instructions. Maintain Clearance: Leave a small gap (not exceeding 1 cm²) between the cables and firestop packs to allow proper sealing.

Packing thickness should meet the minimum recommended standard, typically 24 mm or more. Step 4: Apply FirestoppingAfter the support plates are installed, fill any gaps around the cable tray and support plates with firestop materials. Ensure all gaps inside and around metal trunking are sealed completely, both internally and externally.

Cover plates should be consistent in size, painted evenly, and used to close openings. Step 5: Verify ComplianceCheck that the installation meets relevant standards such as EN 1363-1 for fire resistance and DIN EN 61537 for cable support systems. Ensure that the system can withstand mechanical loads and maintain electrical functionality during a fire, as tested in E60 or E90 fire-rated classifications.

Step 6: Final InspectionInspect the installation for proper alignment, secure fastenings, and complete fireproof sealing. Ensure that the cable tray system is accessible for maintenance and that all fireproofing measures are intact and continuous. By following these steps, fireproof cable tray support plates can be installed safely, ensuring both mechanical stability and fire resistance in compliance with international standards.